This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose we randomly selected 250 people, and on the basis of their responses to a survey we assigned ... (Read 144 times)

cabate

  • Hero Member
  • *****
  • Posts: 537
on: Jun 24, 2018
Suppose we randomly selected 250 people, and on the basis of their responses to a survey we assigned them to one of two groups: high-risk group and low-risk group. We then recorded the blood pressure for the members of each group. Such data are called:
 a. observational. c. matched.
  b. experimental. d. None of these choices.

Question 2

One of the simplest ways to reduce random variation is to smooth the time series using moving averages and exponential smoothing.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

asdfasdf

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

T


cabate

  • Member
  • Posts: 537
Reply 2 on: Jun 24, 2018
:D TYSM

JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Relative Energy Consumption per Person for Selected Countries Relative Energy Consumption per Person for Selected Countries
This image captures a protest of people who want the privilege of “naming” themselves. This image captures a protest of people who want the privilege of “naming” themselves.
For millions of people, the United States represents a land of opportunity and freedom from ... For millions of people, the United States represents a land of opportunity and freedom from ...
Selected Crystalloid IV Solutions Selected Crystalloid IV Solutions
Indications for Selected Nonsteroidal Anti-Inflammatory Drugs Indications for Selected Nonsteroidal Anti-Inflammatory Drugs
Collage of people showing emotions Collage of people showing emotions
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library